Water-heater



EZBA T. WELLS, F CHICAS-U7 ILLINS.

'WATER-HEATER.

Specification of Letters lateiit. i

ratentediviay 4, 192e.

Application filed 'May 3, 1919; Serial No. 294,619.

To aZZjw/iom it may confiera:

T. lVeLLs, a

i Be it known that'l, Erma.'

citizen of the `United- States, residing at Chicago, 'in the county (if-Cook andv State o f Illinois, have invented certain new and useful llm'prove-ments in fitter-Heaters, of

Whichthe following is a vspeoilication..

'The invention relates to Water heaters and has especial reference to. means for heating Water in kitchen boilers, or the like.

One of the objects of theiiwention is to increase the efliciency of devices of this character.

Another object is to provide, in cooperan tion with a suitable burner, a Wall of the' boiler of such contour, or contigurati on,that it will not lhinder complete combustion of the'gases and therefor-e thel incerobustible products of combustion, being so limited in quaetityand character are not oensl've 'to the occupants of the room, rendering; piping.

I.to the chimney unnecessary. i

Another object is to provide-al boiler and heater as unitary structurl Another object is to ind ithehot Waterlpipe, carry the water to the top of the boiler with a dead air space open to the atmosphere. i

@ther and more specific objects of the invent-ion will heee-inc readily apparent, to persons skilled in thelart, from a considera# tion of the following descriptionu when tal/ren in coi' notion with 'the drawings, Whereiimw p .Figure l is acenti'al vertical section oli' a boiler showing my improved protein-ed forni of Water heating arrangement.

Fig. 2 is a section taken on line lfig. 1.

'ln all the views the same reference characters are vemployed to indicate similar parts. l

y5 is a kitchen boiler in inverted position with the end 6, 'which is usually at the bot' tom of the boiler, located atthe top, and the convex end 7 located at the bottom, for a purpose to be hereinafter more ullyvexplained.

Near the lower end of the boiler and part of the unitary structure are two diaphragme 8 and 9, spaced. apart to provide aio air space 10 therebetween. This air space may le vented to the outside atmosphere by a vent hole 11, if desired. The upperdiaphragm 8 is connected to an air containing pipe 19;,

which is closed. at its upper end' as by a reducer 13. A smaller Water 'conducting pipe lll,v is connected to the lower diaphragm 9 and communicates with afwater' cornpartm ment The compartment"tor'chamber 15 is'comiected with the main 'compartment .16 by suitable means,.asby means of proper fittings 17 and the union 1 8. TheWater-in `taire pipe iig-.passesthrough theupper'head G to aY point i2() nearthe bottom of the boiler. The air space between the pipes 12 and. 14

serves, as an insulator to prevent the heated 'Water passing up'tlirough the pipe 14 from the eempartment 15 being cooled by the rela-.

tively cool Water Within the larger compartment 1G oi the tanlr. A hot Water delivery pipe 21 located in the upper head 6 of the boiler, as at 22,'through whichhot Water 'from the tank passes to any -suitablcfpoint of delivery.

A fuel burner is fed4 byaI suitable pipe 241 controlled,V by a oooh Another pipe 42G supplies the pilot burner 27 and this' burner is controlled by the 'cock 28.1 Both burners are connected to a supply pipe 29 through which the gas or other fluid; fuel passes to the respective burners.

The lower head of the structure is conn vexed or liet, so that when the gases troni the borner 23 inipinge-upon this surlace they are not held long enough in contact` With `the relatively cold head to set free the carbon., and thus prevent :complete combustion ofthe gases, as would be the case if the head were coneavecl, as usual where burners are applied tot-nhs of this character and 'when the conc-.we 4head of the tank is at bottoni end in which position they are' usually installed.

r.-Che burner 23 heats the Water in the compartment 15, which rises rapidly through the pipe 1.4,.and discharges at itsupper end, as at 30, immediately .in the neighborhood ofthe lower endet the pipe 21. The air space, between the pipes 12 and 14, iiesulates the ascending column nl relatively hot Watei` and prevents itlrom being chilled by the colder Water that interfenes between the diaphragm 8 in the upper end ofthe composite pipes 12 and le. The colder'water passes. through the bypass fittings 17 and the union 18, into the lower chamber 15.

`l'lhen heat is applied to the bottom of the structures illustrated the 'Waterlimniediately over the burner will rise in a most direct li over the burner.

WVhile I yhave herein shown a single em-a bodiment of my invention, ior the purpose of clear disclosure, it will be manifest, to l persons skilled in the art that considerable '1'5 change in the arrangement and configuration of theparts may be made within the scope of the appended claims.

Having described my invention, what I lclaim is z- 1. A heater of the character described providing -a tank having aA lower and an f upper Water chamber and an intermediate air chamber, the latter having,y air inlet .f passa e ways through the walls of the tank out o the path ofthe products of combustion from the heating burner; awater pipe connected to the water chamber, passing :through the air chamber and opening into l `theupper chamber near the top thereof; an

Y- 3.0 air pipe surrounding the, water pipe and spaced away therefrom, closed at its upper end and having its lower end connected to saiduintermediate air chamber to provide an air jacket for said water pipe and for 31S the lower end of said upper chamber; means for connecting the two water chambers together and a burner applied to the lower end of said tank.

2. A unitary structure of the character described ,having in i combinative association an elongated tank providing a lower con- Vex smooth end wall, a pair of spaced apart diaphragms near the lower end of said tank providing two water chambers and an air space therebetween; a water pipe connected to the substantial center of the lower diaphragm extending through the substantial center of the tank and opening at its upper end near the upper end of the tank; a larger concentrically disposed 4pipe connected to thev upper diaphragm surrounding the water pipe, to provide a dead air space between the pipes extending substantially the full length o f the water pipe and closed at its upper. end; a bypass around said diaphragms and a fuel burner under the lower end of the tank. v

3. An article of manufacture comprising an elongated boiler, having two spaced apart diaphragms, near one end, dividing the boiler into two water chambers and an intermediate air chamber, said boiler having openings in its walls into said air chamber; a water pipe connected to one mater chamber a'nd extending to the remote end of the other water chamber and an air pipe connected to the airchamber, surrounding the water pipe and closed at its upper end, to provide a dead air space.

`In testimony whereof. I hereunto sub- 70 scribed my name.

EZRA WELLS. 

